Some of the most damaging criticism of Pat Robertson comes from former aid workers at Operation Blessing. Photograph: Win McNamee/Getty Images

Now a new documentary lays bare the extent of the misrepresentations of Operation Blessing’s activities in the Democratic Republic of Congo, formerly Zaire, that it says continue to this day.

Mission Congo, by David Turner and Lara Zizic, opens at the Toronto film festival on Friday. It describes how claims about the scale of aid to Rwandan refugees were among a number of exaggerated or false assertions about the activities of Operation Blessing which pulls in hundreds of millions of dollars a year in donations, much of it through Robertson’s televangelism. They include characterising a failed large-scale farming project as a huge success, and claims about providing schools and other infrastructure.

But some of the most damaging criticism of Robertson comes from former aid workers at Operation Blessing, who describe how mercy flights to save refugees were diverted hundreds of miles from the crisis to deliver equipment to a diamond mining concession run by the televangelist.

If this turns out to be true, Pat is hands down one of the most hypocritical and downright evil preachers alive. Like I said, we already knew he was a bad person with his take on the Haitian tragedy and his repeated bigotry. This would just take him to rarefied air of evilness.

But God will tell him who’s going to win the next election so that you can send him money… perhaps, we should have seen something like this coming!